Hypothesis Engine by GrowthFuel - Sharpen your experiments. Scale with clarity
by•
AI-powered hypothesis analyzer for growth teams. Get instant feedback, rewrite vague ideas, and launch better experiments. Built by a growth leader from Shopify & Dropbox. Free to use.
Replies
Best
Maker
📌
Hey PH 👋
I'm Gustavo, and after 20 years leading growth across startups, and teams at Shopify, and Dropbox, this is the tool I wish I had years ago.
Too many experiments fail not because of bad ideas…
…but because the hypothesis was never clear to begin with.
So I built the Hypothesis Engine:
✅ An AI-powered coach to turn fuzzy growth ideas into testable hypotheses
✅ Confidence scoring (1-5) based on structure, clarity, and logic
✅ One-click rewrites with instant improvement suggestions
✅ Sample size calculator and community benchmarks
✅ Built 100% on Lovable: no engineers needed
I believe prototypes are the new content—and this is my first stake in that future. It was built in <10 hours using only AI tools, no code.
If you're a growth leader, PM, or startup founder, give it a try and let me know what you think. No sign-up, no fluff. Just clarity.
👉 hypothesis.growthfuel.ca
Would love your feedback, ideas, and support.
Thank you for checking it out!
Gustavo
Replies